In this study, we aimed to evaluate changes of vertical palpebral fissure height （VPFH） after unilateral lateral rectus muscle recession. Twenty-five and twenty-six patients who were candidates for lateral rectus mu...In this study, we aimed to evaluate changes of vertical palpebral fissure height （VPFH） after unilateral lateral rectus muscle recession. Twenty-five and twenty-six patients who were candidates for lateral rectus muscle recession were assigned into “with” and “without” intermuscular septum dissection study arms. The VPFH was measured at one-day before surgery and in two weeks and three months, postoperatively. Three months after surgery, significant increase of VPFH was observed in both groups （Paired t-test; P=0.005）. Also, less widening of VPFH was observed in “with intermuscular septum dissection” group （Change in VPFH in “with intermuscular septum dissection” vs “without intermuscular septum dissection” groups： 0.48 mm vs 1.34 mm; ANCOVA test; P〈0.001）. However, such results were not observed two weeks post-operatively （Change in VPFH in “with intermuscular septum dissection” vs “without intermuscular septum dissection” groups： -0.28 mm vs 0.28 mm; ANCOVA test; P=0.302）. Intermuscular septum dissection is recommended in lateral rectus muscle recession to partially prevent the undesirable increment of VPFH.展开更多
Background:Hidrocystoma,or sudoriferous cyst,is an eyelid tumor originating from apocrine or eccrine sweat glands.Its presence in the orbit is relatively rare.Case presentation:A full-term female child with severe rig...Background:Hidrocystoma,or sudoriferous cyst,is an eyelid tumor originating from apocrine or eccrine sweat glands.Its presence in the orbit is relatively rare.Case presentation:A full-term female child with severe right eye extrusion was referred to our department two hours after birth.We performed cyst aspiration under ultrasonic guidance;15 cc straw-colored fluid was obtained and proptosis resolved significantly.Orbital magnetic resonance imaging(MRI)showed a large unilocular retrobulbar mass with hypo-intensity in T1 and hyper-intensity in T2.The case underwent further daily ocular assessment until day 5;when proptosis began to worsen again.On day 6,under general anesthesia,we performed aspiration and then the cyst was completely removed with an intact wall through a trans-conjunctival incision.The diameter of the aspirated cyst was about 4 cm.In pathologic consultation,a cystic cavity lined by a layer of sweat duct like epithelium with apical snouts consistent with the diagnosis of apocrine hidrocystoma was reported.Conclusion:To date,in the literature,six other cases of orbital hidrocystoma have been reported in childhood with protean clinical pictures;none of which presented at birth.Herein,we introduce the first case report at birth and also provide a review on the literature.Our report strongly argues against the well reputed theory of traumatic origin for orbital hidrocystoma;it has been postulated that this tumor may be the result of sweat gland cells implantation through the orbit.We thereby suggest the possible presence of choristomatous ectopic sweat gland cells in the orbit during embryogenesis.展开更多
基金supported by Isfahan University of Medical Sciences
文摘In this study, we aimed to evaluate changes of vertical palpebral fissure height （VPFH） after unilateral lateral rectus muscle recession. Twenty-five and twenty-six patients who were candidates for lateral rectus muscle recession were assigned into “with” and “without” intermuscular septum dissection study arms. The VPFH was measured at one-day before surgery and in two weeks and three months, postoperatively. Three months after surgery, significant increase of VPFH was observed in both groups （Paired t-test; P=0.005）. Also, less widening of VPFH was observed in “with intermuscular septum dissection” group （Change in VPFH in “with intermuscular septum dissection” vs “without intermuscular septum dissection” groups： 0.48 mm vs 1.34 mm; ANCOVA test; P〈0.001）. However, such results were not observed two weeks post-operatively （Change in VPFH in “with intermuscular septum dissection” vs “without intermuscular septum dissection” groups： -0.28 mm vs 0.28 mm; ANCOVA test; P=0.302）. Intermuscular septum dissection is recommended in lateral rectus muscle recession to partially prevent the undesirable increment of VPFH.
文摘Background:Hidrocystoma,or sudoriferous cyst,is an eyelid tumor originating from apocrine or eccrine sweat glands.Its presence in the orbit is relatively rare.Case presentation:A full-term female child with severe right eye extrusion was referred to our department two hours after birth.We performed cyst aspiration under ultrasonic guidance;15 cc straw-colored fluid was obtained and proptosis resolved significantly.Orbital magnetic resonance imaging(MRI)showed a large unilocular retrobulbar mass with hypo-intensity in T1 and hyper-intensity in T2.The case underwent further daily ocular assessment until day 5;when proptosis began to worsen again.On day 6,under general anesthesia,we performed aspiration and then the cyst was completely removed with an intact wall through a trans-conjunctival incision.The diameter of the aspirated cyst was about 4 cm.In pathologic consultation,a cystic cavity lined by a layer of sweat duct like epithelium with apical snouts consistent with the diagnosis of apocrine hidrocystoma was reported.Conclusion:To date,in the literature,six other cases of orbital hidrocystoma have been reported in childhood with protean clinical pictures;none of which presented at birth.Herein,we introduce the first case report at birth and also provide a review on the literature.Our report strongly argues against the well reputed theory of traumatic origin for orbital hidrocystoma;it has been postulated that this tumor may be the result of sweat gland cells implantation through the orbit.We thereby suggest the possible presence of choristomatous ectopic sweat gland cells in the orbit during embryogenesis.
